STPS1L40AFN STMicroelectronics Schottky Diode (Small Outline Diode Flat Lead) In Stock
STMicroelectronics STPS1L40AFN is a single silicon Schottky rectifier diode rated at 1 A forward current and 40 V reverse voltage. It features a low 0.63 V maximum forward voltage and 60 A non-repetitive peak current capability for freewheeling applications. Supplied in a compact SOD flat-lead package with worldwide shipping.
- Manufacturer
- STMicroelectronics
- Package
- Small Outline Diode Flat Lead
- Pin Count
- 2
- Lifecycle
- OBSOLETE
- Datasheet
- STPS1L40AFN Datasheet PDF
- Category
- Schottky Diode
- Price
- From $0.0651(MOQ 50000)
- Temp Range
- ?°C to 175.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Low 0.63 V maximum forward voltage reduces conduction losses in DC-DC converters and rectifier stages operating at 40 V
- 60 A non-repetitive peak forward current capability for robust freewheeling protection in inductive load switching circuits
- Single silicon Schottky rectifier in a compact R-PDSO-F2 flat-lead package optimized for surface-mount power applications
Applications
The STPS1L40AFN is used as a freewheeling diode in DC-DC buck and boost converters, providing a low-loss current path for inductive energy during switch-off intervals. Its 40 V reverse voltage and 1 A continuous forward current rating suit it for low-voltage power supply output stages and motor drive snubber circuits. The low forward voltage of 0.63 V maximum minimizes power dissipation in battery-powered and energy-efficient designs.
Specifications
| YTEOL | 0 |
| Additional Feature | FREE WHEELING DIODE |
| Application | POWER |
| Configuration | SINGLE |
| Diode Element Material | SILICON |
| Diode Type | RECTIFIER DIODE |
| Forward Voltage-Max (VF) | 0.63V |
| JESD-30 Code | R-PDSO-F2 |
| Non-rep Pk Forward Current-Max | 60A |
| Number of Elements | 1 |
| Number of Phases | 1 |
| Output Current-Max | 1A |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | NOT SPECIFIED |
| Rep Pk Reverse Voltage-Max | 40V |
| Reverse Current-Max | 35 µA |
| Reverse Test Voltage | 40V |
| Surface Mount | YES |
| Technology | SCHOTTKY |
| Terminal Form | FLAT |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| Package | Small Outline Diode Flat Lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8541.10.00.80 |
| Country of Origin | Morocco |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What forward voltage does STPS1L40AFN exhibit, and why does this matter for DC-DC converter efficiency?
The STPS1L40AFN has a maximum forward voltage of 0.63 V at rated current. Lower forward voltage directly reduces conduction loss in rectifier stages; compared to a standard PN diode with roughly 0.7 V to 1.0 V drop, this Schottky device recovers measurable efficiency in 40 V DC-DC converters switching at hundreds of kilohertz.
For which inductive switching applications is STPS1L40AFN suited as a freewheeling diode?
It is designed as a freewheeling diode in buck converters, boost converters, flyback stages, and motor-drive H-bridge circuits. The 60 A non-repetitive peak forward current rating provides protection against inductive kick transients, while the 40 V reverse voltage covers typical 24 V and 36 V bus designs with adequate margin.
How does the SOD flat-lead (R-PDSO-F2) package of STPS1L40AFN simplify assembly on a power PCB?
The R-PDSO-F2 flat-lead package uses a small 2-terminal surface-mount footprint with low profile, reducing board area compared to axial-lead through-hole diodes. This simplifies automated SMT assembly and enables tight placement next to switching MOSFETs in compact power modules, keeping parasitic inductance below 1 nH in the freewheeling loop.
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About STMicroelectronics
STMicroelectronics is a global semiconductor leader serving customers across the spectrum of electronics applications. ST's products are found in a wide range of applications including automotive, industrial, personal electronics, and communications.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 50000+ | $0.0688 | $3441.00 |
| 70000+ | $0.0665 | $4657.10 |
| 100000+ | $0.0651 | $6513.00 |
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